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Abstract

The validity of macroscopic models in the limit of large mean-free path is examined by solving a one-dimensional model equation, where the term v.del f(1) is retained in the kinetic equation. A standard thirteen-moments approximation yields accurate results in all collisionality regimes if the fluid velocity is sufficiently small. In contrast, the Chapman-Enskog scheme is only accurate in the collision-dominated regime.

Additional information

Authors: KERNER W, Max-Planck-Institut für Plasmaphysik, D-8046 Garching bei München (DE);PFIRSCH D, Courant Institute of Mathematical Sciences, 251 Mercer Street, New York, N.Y.10012 (US);WEITZNER H, Courant Institute of Mathematical Sciences, 251 Mercer Street, New York, N.Y.10012 (US)
Bibliographic Reference: Report: IPP 6/281 EN (1989)
Availability: Available from Max-Planck-Institut für Plasmaphysik, 8046 Garching bei München (DE)
Record Number: 198910991 / Last updated on: 1994-12-01
Category: PUBLICATION
Original language: en
Available languages: en